As Wireless Sensor Networks (WSNs) consists of large number of nodes which are deployed in unattended/hostile environments and are exposed to different types of attacks due to compromise of node or group of nodes. Usually, security designs provide a hop-by-hop security paradigm and are vulnerable to many types of Denial-of-Service (DoS) attacks, such as report disruption and selective forwarding, puts data availability at stake. In this paper, the authors overcome these vulnerabilities for large-scale static WSNs by using Location aware multifunctional key management framework.